Online Operating Systems???

Not sure if this is the right place for this thread but here it is. Has anyone used anyonline operating systems with their playbook? If so please indicate which one(s) and indicate what you thought of it.

Yes that is exactly what I was talking about. Thanks SifJar for the list.

One other thing, I was also looking at a cloud storage that I can save movies(avi) on and play them from the cloud. I've tried a few but have not been successful in being able to play them on the playbook from the cloud.